In Jānuśīrṣāsana B, sit on the inside edge of the foot. The heel is placed directly under the anus with the inside edge of the foot under the thigh. Aim to keep the bent leg at 80 degrees. The pressure of the heel in the anus and perineum is particularly important, especially for men but also for women, to achieve the health benefits of this posture, including stimulating the vīrya nāla, which is involved in insulin production.